The tests were refactored into an inheritance model so that we can
share as much of the testing code as possible between v1.0 and v1.1.
As a part of this process, test class names were normalized and the
py3k check for keystone middleware was removed.
Change-Id: I04d342e2ce8bfd4fa0829935deb9b2753dd5af32
Partially-Implements: blueprint api-v1.1